Abstract: A ceramic green sheet structure has a ceramic green sheet including at least a ceramic material and a resin and a conductive layer formed on the ceramic green sheet. An electrode non-formed area has a porosity equal to or greater than 17%, and preferably, equal to or less than 25%. Moreover, an electrode formed area where the conductive layer is formed may have a smaller porosity than the electrode non-formed area where no conductive layer is formed.

Abstract: A ceramic green sheet structure has a ceramic green sheet including at least a ceramic material and a resin and a conductive layer formed on the ceramic green sheet. An electrode non-formed area has a porosity equal to or greater than 17%, and preferably, equal to or less than 25%. Moreover, an electrode formed area where the conductive layer is formed may have a smaller porosity than the electrode non-formed area where no conductive layer is formed.

Abstract: A so-called open image forming system is disclosed that reduces the burden on the user and the system administrator, and permits anyone to use the system and not just users whose use rights have been defined. The image forming system includes printing devices that form images on paper based upon image information, a plurality of terminal devices that are connected to the printing devices via a network and which can transmit an e-mail containing image information to the network, and a server that sends e-mails in response to receiving an e-mail containing image information and that will transmit a predetermined password that identifies the image information to a data transmission terminal device that is one of the plurality of terminal devices.